package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.StatusConstant;
import com.sky.context.BaseContext;
import com.sky.dto.CategoryDTO;
import com.sky.dto.CategoryPageQueryDTO;
import com.sky.entity.Category;
import com.sky.exception.DeletionNotAllowedException;
import com.sky.mapper.CategoryMapper;
import com.sky.mapper.DishMapper;
import com.sky.mapper.SetmealMapper;
import com.sky.result.PageResult;
import com.sky.service.CategoryService;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.BeanClassLoaderAware;
import org.springframework.beans.factory.BeanNameAware;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;

import java.beans.beancontext.BeanContext;
import java.time.LocalDateTime;
import java.util.List;

@Service
public class CategoryServiceImpl implements CategoryService {
    @Autowired
    private CategoryMapper categoryMapper;
    @Autowired
    private DishMapper dishMapper;
    @Autowired
    private SetmealMapper setmealMapper;

    @Override
    public void addCategory(CategoryDTO categoryDTO) {
        Category category = new Category();
        BeanUtils.copyProperties(categoryDTO,category);
        category.setStatus(StatusConstant.DISABLE);
            /*category.setCreateTime(LocalDateTime.now());
            category.setUpdateTime(LocalDateTime.now());
            category.setUpdateUser(BaseContext.getCurrentId());
            category.setCreateUser(BaseContext.getCurrentId());*/

        categoryMapper.addCategory(category);
    }

    @Override
    public PageResult page(CategoryPageQueryDTO categoryPageQueryDTO) {
        PageHelper.startPage(categoryPageQueryDTO.getPage(),categoryPageQueryDTO.getPageSize());

        Page<Category> page = categoryMapper.page(categoryPageQueryDTO);
        long total = page.getTotal();
        List<Category> records = page.getResult();

        return new PageResult(total,records);
    }

    @Override
    public void startOrstop(Integer status, Long id) {
        Category category = new Category();
        category.setStatus(status);
        category.setId(id);
//        Category category = Category.builder().status(status).id(id).build();
        categoryMapper.update(category);
    }

    @Override
    public void delete(Long id) {
        //查询该分类下是否关联了菜品
        Integer count = dishMapper.countByCategory(id);
        if(count>0){
            throw new DeletionNotAllowedException(MessageConstant.CATEGORY_BE_RELATED_BY_DISH);

        }
        //查询该分类下是否关联了套餐
        count = setmealMapper.countByCategoryId(id);
        if (count>0){
            throw new DeletionNotAllowedException(MessageConstant.CATEGORY_BE_RELATED_BY_SETMEAL);

        }
        categoryMapper.delete(id);
    }

    @Override
    public void alterCategory(CategoryDTO categoryDTO) {
        Category category = new Category();

        BeanUtils.copyProperties(categoryDTO,category);
        /*category.setUpdateTime(LocalDateTime.now());
        category.setUpdateUser(BaseContext.getCurrentId());*/
        categoryMapper.update(category);
    }

    @Override
    public List<Category> findByType(Integer type) {

        return categoryMapper.findBytype(type);
    }


}
